Researches on Population Ecology

, Volume 41, Issue 3, pp 263–268 | Cite as

The genetic heterogeneity of deer mouse populations (Peromyscus maniculatus) in an insular landscape

  • Pierre-Alexandre Landry
  • François-Joseph Lapointe

Abstract

A survey of the genetic variability in deer mouse populations was performed using specimens collected from six different islands on a lake covering approximately 50 km2. Random amplified polymorphic DNA (RAPD) was used to measure the extent of the genetic differences in this insular system. An analysis of molecular variance (AMOVA) revealed that populations are clearly separated at this microgeographic scale (Fst = 0.13863; P < 0.001). The homogeneity of molecular variance test (HOMOVA) indicated that within-population levels vary greatly (Bp = 0.76831; P < 0.001). The within-population molecular variance was found to be mainly correlated with the accessibility of the islands, computed as the inverse of the geographic distance separating an island from the lakeshore (r = 0.916; P < 0.003).

Key words AMOVA Dispersion Gene flow Genetic distance HOMOVA RAPD 

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Copyright information

© The Society of Population Ecology and Springer-Verlag Tokyo 1999

Authors and Affiliations

  • Pierre-Alexandre Landry
    • 1
  • François-Joseph Lapointe
    • 1
  1. 1.Département de Sciences Biologiques, Université de Montréal, C.P. 6128, Succursale Centre-ville, Montréal, Québec H3C 3J7, Canada Tel. +1-(514) 343-7999; Fax +1-(514) 343-2293 e-mail: landryp@ere.umontreal.caCA

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